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电动助力转向系统是一种直接依靠电动机提供辅助转矩的转向系统。这种转向系统不直接使用汽车发动机的动力,而依靠汽车上蓄电池作为其电源,它不需要复杂的控制机构,根据作用在方向盘上的扭矩信号和车速信号,通过电子控制装置使电动机产生相应大小和方向的辅助力来驱动转向机构,使汽车的转向轮发生偏转。由于电动助力转向系统具有节约能源、没有污染、成本低和便于控制、易于装车等优点,它代表了汽车转向技术的发展方向,不久的将来会在动力转向领域占据主导地位。
Electric power steering system is a kind of steering system that directly depends on the motor to provide auxiliary torque. This steering system does not directly use the power of the car engine, but relies on the car battery as its power supply, it does not require complicated control mechanism, based on the torque signal and the speed signal acting on the steering wheel, the electric control device produces the corresponding size And direction of the auxiliary force to drive the steering mechanism, the steering wheel of the vehicle deflection. Because electric power steering system has the advantages of energy saving, no pollution, low cost, easy control and easy loading, it represents the development direction of automobile steering technology and will occupy a dominant position in the power steering field in the near future.